* perl5lib/LinuxDocTools.pm:
  - Value of <HANDLE> construct can be "0"; test with defined() at ../perl5lib/LinuxDocTools.pm line 140.
    + Use defined ($dtd2 = <$TMP>)
  - Subroutine process_options redefined at ../perl5lib/LinuxDocTools.pm line 362.
    + Utils::process_options is always used with fulll name. No need to import it.
  - Use of uninitialized value in concatenation (.) or string at ../perl5lib/LinuxDocTools.pm line 419.
    + /etc/sgml.catalog had bad (unneeded) prefix.
* lib/fmt/fmt_lyx.pl:
  - Use of uninitialized value in numeric eq (==) at /tmp/ldt.OGoYc31777/linuxdoc-tools/fmt/fmt_lyx.pl line 222, ...
    Make sure $inlookchange is initialized.
* lib/fmt/fmt_rtf.pl:
  - Use of uninitialized value in concatenation (.) or string at /tmp/ldt.OGoYc31777/linuxdoc-tools/fmt/fmt_rtf.pl line 53.
    + Better check
* lib/fmt/fmt_txt.pl:
  - "my" variable $number masks earlier declaration in same scope at /tmp/ldt.OGoYc31777/linuxdoc-tools/fmt/fmt_txt.pl line 266.
    + Remove redundant my.

* doc/Makedoc.sh: print next backend to be used.